Filter rule "Simple lookup" with Option "Static parameter" doesn´t work for attribute text

[zonky2]

Checklist before I submit this issue report

I confirm that:

• I have tested this with the latest version available
• I have read documentation @ http://metamodels.readthedocs.org/en/ or http://metamodels.readthedocs.org/de/
• I have checked the Contao community forums for references https://community.contao.org/
• I have checked existing issues for duplicates and found none @ https://github.com/MetaModels/core/issues?q=is%3Aissue

My environment is:

Key	Value	Comments
PHP version:	5.6
Contao version:	3.5.15
MetaModels version:	a14
Installation via composer:	(yes)
Installed MetaModels packages:	no
DCG version:	b38

Issue description

• fill attribute text
• Filter rule "Simple lokup" with "Static parameter" for attribute text
• at CE MM-List the select to choose a item is empty

Steps to reproduce

see description

the selct is filled for attribute select but empty for attribute text...

the different is may be the

core/src/MetaModels/Filter/Setting/SimpleLookup.php

Line 205 in d154a5a

$arrOptions = $objAttribute->getFilterOptions(null, false);

with parameter null, false - look at

core/src/MetaModels/Attribute/BaseSimple.php

Line 87 in d154a5a

public function getFilterOptions($idList, $usedOnly, &$arrCount = null)

see at https://community.contao.org/de/showthread.php?63848-Item-anhand-von-textfeld-im-Backend-mit-filter-zuweisen

[zonky2]

the attribute text - and all other simple attributes - wait to you to implement the methode...

[zonky2]

with PR #1053 we can "to sail around" this